[FFmpeg-cvslog] vocenc: abort if unsupported codec is used

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Sun Nov  4 03:59:08 2012 +0000| [1c5b56eec7bb6c8554d33f50adae4359d243e390] | committer: Paul B Mahol

vocenc: abort if unsupported codec is used

Signed-off-by: Paul B Mahol <onemda at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1c5b56eec7bb6c8554d33f50adae4359d243e390
---

 libavformat/vocenc.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavformat/vocenc.c b/libavformat/vocenc.c
index d97cdc4..27ed16f 100644
--- a/libavformat/vocenc.c
+++ b/libavformat/vocenc.c
@@ -30,6 +30,7 @@ typedef struct voc_enc_context {
 static int voc_write_header(AVFormatContext *s)
 {
     AVIOContext *pb = s->pb;
+    AVCodecContext *enc = s->streams[0]->codec;
     const int header_size = 26;
     const int version = 0x0114;
 
@@ -37,6 +38,11 @@ static int voc_write_header(AVFormatContext *s)
         || s->streams[0]->codec->codec_type != AVMEDIA_TYPE_AUDIO)
         return AVERROR_PATCHWELCOME;
 
+    if (!enc->codec_tag || enc->codec_tag > 0xffff) {
+        av_log(s, AV_LOG_ERROR, "unsupported codec\n");
+        return AVERROR(EINVAL);
+    }
+
     avio_write(pb, ff_voc_magic, sizeof(ff_voc_magic) - 1);
     avio_wl16(pb, header_size);
     avio_wl16(pb, version);